Which is a correct factorization of 391?
(20 - 3)2
(20-3)(20 + 3)
(20 - 9/(20 + 9)
(20 + 3)2

correct answer:

b.(19,-2)

22, 28, 34, 40, 46

b)   f(n) = 6n + 16

n = what is the number of the row ( 22 would be row 1) so if we replaced n with 1, we would get 22

c)   the 14th row will have 100 seats

(1)   (2)   (3)   (4)   (5)   (6)   (7)   (8)   (9)   (10) (11) (12) (13) (14)

22 | 28 | 34 | 40 | 46 | 52 | 58 | 64 | 70 | 76 | 82 | 88 | 94 | 100

answer: given the scale 3,5 mm to 1 foot: so you know this and you need convert this 150mm to get the right answer.